This document provides an introduction and overview of civil engineering. It begins with definitions of civil engineering and its broad disciplines. It then discusses the various sub-disciplines of civil engineering like structural engineering, transportation engineering, geotechnical engineering, and environmental engineering. For each sub-discipline, it provides a brief description of the focus and typical job roles. It also discusses other aspects like common industries civil engineers work in, typical salaries, and the scope of career opportunities available after graduation for civil engineers.